RadarPulse: a Cheddar Flow alternative with a 0-100 flow score

What sets options flow tools apart

Every options flow tool has the same raw input: the OPRA tape of millions of contracts traded daily. What distinguishes tools is what they do with that raw data before it reaches you. The most basic tools just display the tape filtered by size. Better tools flag sweeps and identify block prints. The best tools rank every print against each other using the factors that actually determine whether a print is worth attention, volume relative to open interest, premium spent, time to expiry, and whether the execution was aggressive.

RadarPulse takes the ranking approach: every print gets a 0-100 score, and the score is computed from four disclosed factors you can inspect per print. That transparency means you can evaluate each ranking rather than just trust the system's judgment, and over time, you build intuition for the signal rather than just consuming it. For the underlying concepts, our guide on unusual options flow covers what makes a print genuinely unusual.

What RadarPulse delivers

• A 0–100 unusualness score on every trade. Volume/OI ratio, dollar premium, days-to-expiry, and aggressor side, four factors computed on every print, all visible. High-score trades surface to the top of the live feed automatically; you don't need to manually evaluate which prints are most unusual.
• A daily Top 25 with clear flags. The day's most unusual activity is collected into a ranked Top 25, each print tagged EXTREME, ELEVATED or NOTABLE so you scan severity labels first and drill into the strongest signals. It's a daily digest you can work through in minutes.
• Whale detection. Block and sweep orders moving real size are surfaced with the aggressor side flagged, you see the direction of the institutional-sized print, not just its existence.
• Congress, Trump and 13F trackers. See congressional stock trades, the Trump trades tracker, and 13F institutional holdings alongside the live flow. Smart-money context in the same view as the flow removes the need to switch between tools.
• Radar (AI chat). A built-in AI markets assistant that explains any ticker, print, or market event in plain English, what the company does, what the options position thesis might be, and what risk looks like.
• Vera (AI equity research). An AI equity-research desk that generates structured fundamental analysis on any name in seconds. Run a Vera check on a ticker with an EXTREME score before you enter the trade.
• Free $100K paper trading + Academy. Practise reading and acting on flow signals at zero cost, no card required. The leaderboard tracks paper returns anonymously against other traders.
• Breaking news banner. Real-time market-moving headlines synthesised into a plain-English market reading, so flow prints always have a macro backdrop without you switching tabs.

A factual feature comparison

The table below describes RadarPulse's capabilities in detail. For the Cheddar Flow column we only note what's widely and publicly known; verify current Cheddar Flow features and pricing on their own site.

"See their site" means we're deliberately not stating another company's specifics, verify current Cheddar Flow features and pricing on their own site.

RadarPulse pricing

Clear and flat. Two things are free forever; the scored scanner sits on paid tiers with a trial so you can test it at no cost first.

• Basic: $12/mo, with a 14-day free trial. Scored scanner, daily Top 25, whale detection, Congress and 13F trackers on 15-minute-delayed flow. Radar AI chat and Vera AI equity research included.
• Pro, $29/mo. More headroom for active users, saved filters, more alerts, cross-device sync.
• Elite, $59/mo. Adds the real-time tape for traders reacting inside the same minute.
• Free forever: $100K paper trading + Academy + leaderboard. No card required, practise and compete at zero cost.

Flow is 15-minute delayed on every tier except Elite. Full breakdown at the pricing page.

Which should you pick?

Cheddar Flow is an established platform with its own approach to smart-money tracking; compare it on its own terms. RadarPulse is worth evaluating if you want a transparent 0-100 per-trade score with visible components, a ranked daily Top 25 with severity flags, Congress and 13F context alongside the live flow, AI chat and equity research built in, and a $12/mo entry point with a real trial. If understanding why a print ranked high matters to you, the disclosed scoring approach gives you more to work with over time. Start at the Learn hub or see our guide to the best free options flow scanner.

Cheddar Flow: what it is and what it does well

Cheddar Flow is a real-time options flow scanner that aggregates and displays large unusual options prints from the OPRA tape. It is positioned toward active traders who want a clean, fast interface with community support, the platform pairs its scanning tools with a Discord community where members discuss live prints and market ideas in real time.

Cheddar Flow's core feature set includes real-time streaming flow alerts, unusual options activity detection, options flow heat maps organized by sector, dark pool print integration alongside the options tape, and customizable filters that let users narrow the stream by ticker, premium size, expiry, or contract type. The heat map view in particular is a useful visual for traders who want to see which sectors are absorbing the most unusual activity at a glance rather than scrolling a linear feed.

The platform's main value propositions are visual flow display and real-time speed. For traders who make decisions quickly and want the raw data in front of them with minimal latency and minimal transformation, Cheddar Flow is a well-regarded option. Its Discord community is an additional draw, an active chat layer on top of the data means members can share interpretations and trade ideas alongside the feed itself.

Cheddar Flow pricing ranges from approximately $50 to $150 per month depending on the plan tier, placing it in the mid-to-upper range of the options flow tool market. The platform does not publish a scoring methodology for how it ranks or flags prints, the flow appears largely as it comes off the tape, filtered by size and type, with the trader doing the final assessment of significance.

Understanding where Cheddar Flow excels makes the comparison with RadarPulse more precise: it is a speed-first, stream-first tool. If that is the primary need, it is worth serious consideration. The question for most traders evaluating alternatives is whether raw speed is sufficient, or whether an automatic ranking and cross-domain context layer would change how they work through the data.

One aspect of Cheddar Flow that traders consistently highlight is the depth of its filtering system. Users can narrow the live stream down to specific tickers, minimum premium thresholds, contract types, expiry ranges, and execution styles, creating a personalized feed that matches their watchlist and trading style. This kind of granular filtering reduces noise and keeps the stream focused on names a trader already follows, rather than showing the full universe of unusual activity. For traders with concentrated portfolios or specific sector focus, tight filter configurations are a meaningful productivity tool.

The sector heat map view deserves mention as a genuinely useful visual layer. Rather than showing a linear stream of individual prints, the heat map aggregates unusual options activity by sector and displays it as a color-coded grid, allowing traders to see at a glance where institutional money is concentrating across the market. Technology, energy, healthcare, and financials all show up as distinct zones, and anomalous activity within a sector makes the relevant cell stand out visually. This is a different kind of information than a scored individual print, it is a macro-level view of where the tape is most active, which can help traders decide which sectors deserve closer attention in the individual feed.

The scoring approach: how RadarPulse adds context to raw prints

Cheddar Flow shows you the flow as it happens, a continuous stream of prints, filtered by size and flagged for unusual activity. The trader then evaluates each print individually: is this premium meaningful? Is this expiry aggressive? Is this Vol/OI ratio genuinely unusual for this ticker?

RadarPulse adds a scoring layer that answers those questions automatically on every print. Each trade receives a 0-100 unusualness score built from six components, each weighted by its statistical contribution to genuine unusual activity:

• Volume/OI ratio (40% weight). The single strongest predictor of unusual positioning, when a contract trades a multiple of its open interest in a single session, it suggests fresh directional intent rather than routine hedging or roll activity. This factor carries the most weight because it has the highest correlation with subsequent price action in historical flow analysis.
• Premium size (30% weight). Raw dollar premium spent. Larger premium means more conviction from the buyer, or a larger institution expressing the view. This factor distinguishes a cheap, high-OI-ratio print (less interesting) from an expensive, high-OI-ratio print (worth close attention).
• Execution type (10% weight). Whether the print was a sweep (aggressive, crossing multiple exchanges in sequence to fill immediately) or a block (single large print, often negotiated). Sweeps carry a premium because they signal urgency, the buyer sacrificed price improvement to get filled fast.
• Aggressor side (10% weight). Whether the trade hit the ask (buyer-initiated, bullish directional intent) or the bid (seller-initiated). Bid-side activity on calls and ask-side activity on puts are the most directionally clean signals.
• Days to expiry (5% weight). Short-dated contracts are inherently higher-conviction, they decay fast, so buying them with large premium suggests a specific near-term catalyst. Longer-dated prints can represent hedges or LEAPS rather than directional bets, so they carry slightly less unusualness weight.
• Time of day (5% weight). Prints in the first and last 30 minutes of the session carry slightly more weight, the open and close are when institutional desks typically execute, so unusual activity in those windows has a different character than mid-day noise.

The practical difference this creates: a raw stream requires the trader to judge each print's significance manually. That means applying mental heuristics, is this OI ratio high? Is this premium big for this stock?, across hundreds of prints per session. A scored system applies those heuristics algorithmically and ranks the output, so the day's most unusual prints automatically rise to the Top 25 without manual assessment.

When you are watching hundreds of prints per session, the difference between a ranked list and an unranked stream is the difference between information overload and actionable intelligence. The Top 25 with EXTREME, ELEVATED, and NOTABLE severity flags gives you a daily digest you can review in under ten minutes and know which prints were genuinely anomalous, not just large.

The components are also transparent per print. You can see exactly why a trade scored 87 versus 61, which factors drove the ranking. That transparency builds intuition over time. Traders who understand why the system ranked a print high develop better judgment about when to act on the signal and when to look deeper. A black-box flag system does not provide that learning layer.

Dark pool integration: two different approaches

Both Cheddar Flow and RadarPulse surface dark pool data, but they approach it differently in ways that matter for how you actually use the information.

Cheddar Flow displays dark pool prints alongside options flow as part of the streaming interface. The dark pool data appears in the same feed as the options prints, giving traders a combined real-time view of institutional activity across both markets. This approach prioritizes speed and visual simplicity, everything flows through a single stream.

RadarPulse approaches dark pool data differently: rather than treating it as another line in the stream, the platform identifies when dark pool prints and options activity align directionally within a 48-hour window. This multi-signal confluence pattern, dark pool accumulation on a name followed by unusual call activity, for example, carries meaningfully lower false-positive rates than either signal in isolation. A large dark pool print without corresponding options activity might be a hedge, a portfolio rebalance, or an ETF creation unit. The same dark pool print preceded by unusual call sweeps in the same underlying tells a more directional story.

This confluence detection is a core part of how RadarPulse reduces noise. Raw flow tools show you every signal. Confluence-aware tools show you when multiple signals agree, and agreement across independent data sources is the strongest indicator that an institutional position is being built with directional intent rather than routine portfolio management.

RadarPulse also includes a layer that no pure flow scanner provides: Congressional trade disclosure data sits alongside the dark pool and options signals. The combination creates a three-signal view, dark pool accumulation, unusual options positioning, and Congressional STOCK Act disclosures, that can flag when institutional and political money is moving in the same direction on a name. That cross-domain confluence is a differentiator not available in Cheddar Flow or any other pure options flow platform.

The practical implication: if you find yourself cross-referencing your flow scanner with a separate political trade tracker and a separate dark pool tool, RadarPulse consolidates all three into a single platform. The reduced friction of not switching tools during a live session translates directly to faster and more complete situational awareness when a setup is developing.

There is also a signal-quality argument beyond convenience. When you pull data from three separate platforms and try to synthesize it manually, you introduce latency and the risk of comparing data that is not time-aligned, dark pool prints from one feed, options data from another, congressional disclosures from a third, all potentially on different refresh cycles. RadarPulse's unified data layer means the confluence detection is computed on aligned, consistent data rather than across mismatched feeds. That consistency matters for the reliability of the multi-signal pattern you are trying to evaluate.

Congress and political flow: RadarPulse exclusive signals

RadarPulse includes two political disclosure trackers that no pure options flow tool, including Cheddar Flow, provides: the Congressional stock trade tracker and the Trump trade tracker.

The Congressional tracker surfaces every STOCK Act disclosure, the legally mandated filings that members of Congress must submit within 45 days of a stock transaction. RadarPulse flags trades filed late (a common pattern associated with disclosures that coincide with legislative activity), filters by chamber, party, and ticker, and shows the cumulative congressional positioning in any underlying. When a cluster of legislators from the same committee discloses purchases in a defense or energy name ahead of a committee vote, that is information the options flow alone cannot provide.

The Trump trade tracker covers live policy baskets organized by sector: energy deregulation beneficiaries, defense spending posture, tariff exposure by supply chain, and OGE financial disclosure data. Traders who follow macro political catalysts, tariffs, energy permitting, defense authorization, need to know which equities are directly exposed to specific policy decisions. The tracker organizes that signal in real time alongside the options flow, so when an unusual call sweep hits an energy name, you can immediately check whether congressional positioning and policy momentum are aligned with the directional bet.

Why does this matter alongside flow data? Congressional trading patterns have historically preceded regulatory and legislative changes that affect sector options activity. A committee with jurisdiction over pharmaceutical pricing that shows unusual equity accumulation is a macro signal for healthcare options flow. A defense committee member disclosing a large position in a prime contractor is context for the sweep activity you're seeing in that name's calls. These are not investment signals in isolation, they are additional data points that let you evaluate the plausibility of the thesis implied by a high-scoring options print.

For traders who operate with a political-macro overlay, watching tariff exposure, energy policy, defense cycles, this cross-domain signal adds a layer of context that is simply unavailable in Cheddar Flow and requires a separate subscription and manual cross-referencing in any competing platform. RadarPulse having it built in means the research happens in the same session, at the same time as the flow analysis, rather than in a separate tab after the fact.

It is worth noting that political trade disclosures are not real-time signals, they are filed up to 45 days after the trade date. The informational value is as context and confirmation, not as a lead indicator. RadarPulse presents them that way: as additional data alongside the flow, not as primary signals in their own right. The combination of a high-scoring options print with aligned congressional disclosure in the same underlying is more interesting than either data point alone.

For traders researching options strategies that overlap with macroeconomic and legislative cycles, sector rotations around budget resolutions, energy policy reversals, infrastructure spending packages, or trade agreement shifts, the political disclosure layer is not a novelty feature. It is a meaningful additional signal source that pure options flow platforms were not designed to provide. RadarPulse's decision to integrate it reflects the view that smart-money tracking is incomplete if it excludes one of the most legally-mandated and data-rich disclosure streams available to retail traders.

Pricing comparison: tier by tier

Cheddar Flow pricing is approximately $50 to $150 per month depending on feature tier. Verify current pricing on their site, as subscription structures change. At that range, Cheddar Flow sits in the mid-to-upper tier of the options flow tool market.

RadarPulse pricing at launch:

• Basic: $12/mo with a 14-day free trial. Includes the scored scanner, daily Top 25 with EXTREME/ELEVATED/NOTABLE flags, whale detection, Congress and Trump trackers, 13F institutional holdings, AI chat with Radar, and AI equity research with Vera. Flow is 15-minute delayed. This is the full feature set minus real-time tape and the highest alert volume.
• Pro: $29/mo. Adds saved filter sets, higher alert volume, cross-device sync, and push notifications. At this tier, RadarPulse Pro includes live streaming flow (15-minute delayed), scored unusual activity, the full Top 25 leaderboard, Congress and Trump trackers, earnings calendar, and Radar/Vera AI access. The $29 price point is below the entry tier of most competing flow platforms with equivalent feature breadth.
• Elite: $59/mo. Adds the real-time tape, the live OPRA feed rather than 15-minute delayed data. For traders who need sub-second latency to react to prints as they happen, Elite is the tier to evaluate. At $59, it is still below the lower tier of Cheddar Flow's pricing range while including the Congress and political trackers and the AI layer that Cheddar Flow does not offer.
• Free forever: $100K paper trading wallet, Academy, and leaderboard. No card required. Traders who want to practice reading and acting on flow signals before committing to a paid tier can do so indefinitely on the paper account, competing against the community leaderboard at zero cost.

The price differential narrows when you consider what each platform includes at comparable tiers. Cheddar Flow at $50-150/month is a pure flow scanner, fast, visual, and community-backed. RadarPulse at $12-59/month includes flow scanning, scoring and ranking, political disclosure trackers, AI chat and equity research, and paper trading infrastructure. For traders who would otherwise need a separate political tracker, a separate AI research tool, and a separate paper trading account alongside their flow scanner, RadarPulse consolidates the stack at a lower combined cost.

Cheddar Flow's real-time speed at higher price points may be the decisive factor for traders who need sub-second latency and prioritize raw feed velocity above everything else. For traders who rely on scoring, political data, and AI-assisted research alongside the flow, RadarPulse offers substantially better feature breadth at a lower price point. The right choice depends on which factors drive your workflow. Join the RadarPulse waitlist to access founding-member pricing.

Which tool fits your trading style

Choosing between two options flow tools comes down to what your workflow actually requires on a session-by-session basis. Both Cheddar Flow and RadarPulse are legitimate platforms with distinct design philosophies. The right choice is the one that matches how you actually process data during a live session.

Cheddar Flow is likely the better fit if:

• You prioritize raw real-time speed above all other factors and make decisions within seconds of a print appearing on the tape.
• You want a fast visual stream with minimal friction, a clean interface that surfaces the data and gets out of the way.
• You value the Cheddar Flow community Discord and benefit from real-time discussion and idea-sharing alongside the data feed.
• Speed of alert delivery is your primary evaluation criterion and you are willing to pay $50-150/month for sub-second latency.
• You have a separate research workflow for political data, AI-assisted analysis, and paper trading and do not need those integrated into your flow scanner.

RadarPulse is likely the better fit if:

• You want scored, ranked unusual activity surfaced automatically, so the day's most significant prints rise to the top of a ranked list without manual triage.
• You need Congress and Trump political flow data alongside options activity, because your trading strategy includes a macro political overlay and you track tariff exposure, energy policy, or defense spending as sector catalysts.
• You want an AI assistant (Radar) available during the session for market questions, ticker research, and plain-English explanations of complex prints, without switching to a separate AI tool.
• You use AI equity research (Vera) to run a quick fundamental check on any name before entering a position implied by an unusual print.
• You prefer a lower price point, RadarPulse Basic at $12/mo or Pro at $29/mo covers most active traders' needs, with Elite at $59/mo for real-time tape access.
• You process data from multiple sources, RadarPulse's CSV import from Cheddar Flow, Unusual Whales, or broker exports works with auto column detection, so if you are already exporting data from another platform, you can bring it into RadarPulse's scoring environment without manual reformatting.
• You want to practice reading flow in a $100K paper trading account indefinitely before committing to live trades, the Academy and leaderboard are free forever, no card required.

Many traders find that complementary tools serve different needs within the same workflow. Cheddar Flow for real-time visual streaming during active session hours; RadarPulse for the daily Top 25 review, Congress and political context, AI-assisted ticker research, and scored analysis of the session's most anomalous prints. If you are already a Cheddar Flow subscriber, RadarPulse at $12/mo Basic is a low-cost addition that fills the gaps in scoring, political data, and AI research without requiring you to abandon your existing setup.

The most useful test is to try both with real session data and compare how long it takes to identify the day's three most actionable prints, how much manual triage the raw stream approach requires versus how quickly the scored Top 25 surfaces the same information. Join the waitlist to get access when RadarPulse opens to new users.

A practical note on switching costs: if you already have a flow tool subscription and are evaluating RadarPulse as an addition rather than a full replacement, the entry cost is low enough to run both in parallel for a session or two. Compare how quickly each surface the prints that matter. The paper trading account means you can also test your read of the scored flow against a simulated portfolio without any capital at risk, a no-cost way to evaluate whether the scoring and ranking approach changes how you identify and prioritize signals before committing to a paid subscription.

For traders coming from a pure streaming background, the shift to a ranked list can feel unfamiliar at first, the instinct is to watch the stream in real time rather than trust a ranked summary. But the daily Top 25 review is meant to be used alongside the live feed, not instead of it. During the session, you watch the scored live feed. At the end of the session or before the next open, you review the Top 25 to see which prints ranked highest across the full day, context that is impossible to reconstruct from memory when watching a fast-moving stream. The combination of real-time scored feed plus end-of-session ranked digest is a more complete picture than either approach alone provides. That workflow distinction is worth considering when you evaluate how each platform fits your actual daily routine.

Frequently asked questions

What is a good alternative to Cheddar Flow?

Cheddar Flow is an options flow and smart-money tracking platform. RadarPulse is an alternative with a transparent 0-100 unusualness score on every trade computed from four disclosed factors, Volume/OI, premium, days-to-expiry, and aggressor side, a daily Top 25 with EXTREME/ELEVATED/NOTABLE flags, whale detection, Congress and 13F trackers, AI chat with Radar, AI equity research with Vera, and a free $100K paper-trading wallet with leaderboard.

How does RadarPulse rank unusual options activity?

RadarPulse computes a 0-100 unusualness score using four factors: volume relative to open interest, dollar premium, days to expiry, and aggressor side. All four components are visible per print so you can see exactly why a trade scored high. Prints above threshold surface in the live scored feed; the highest-scoring prints are collected into a daily Top 25 with EXTREME, ELEVATED, and NOTABLE severity tags.

How much does RadarPulse cost?

RadarPulse Basic is $12/mo with a 14-day free trial. Pro is $29/mo, Elite is $59/mo. The $100K paper-trading wallet, leaderboard, and Academy are free forever with no card required. Flow is 15-minute delayed on every tier except Elite, which adds the real-time tape.

Does RadarPulse include dark pool data?

RadarPulse surfaces large block trades alongside options flow, block prints and sweep orders are flagged with the aggressor side so you can track institutional-sized positioning in real time. The Congress and 13F trackers add context on what informed participants own in any underlying, complementing what shows up in the options tape.

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